Mooresville HVAC
AC Repair, HVAC Replacement & Installation Services in Mooresville, NC
For 99 years, GSM Services has been the trusted choice for AC repair, HVAC replacement, installation, and maintenance services in Mooresville, NC. Our certified technicians deliver fast, reliable service and honest, upfront pricing. We're dedicated to improving your home's comfort, air quality, and energy efficiency. Enjoy easy online scheduling, instant online quotes, and FREE service calls with repairs!
Why Locals Choose GSM Services:
- ✅ Fast, Affordable & Reliable
- ✅ Licensed and Insured
- ✅ Locally & Family-Owned for 99 Years
- ✅ Voted Best Local HVAC Company
- ✅ 100% Satisfaction Guarantee
- ✅ Unbeatable Warranties
- ✅ Financing for Any Budget
- ✅ FREE Service Calls with Repairs
- ✅ FREE System Quotes
- ✅ FREE Insulation, Crawlspace & Energy Audits
How Much Does a New AC System Cost in Mooresville, NC?
The cost of a new Air Conditioning system in Mooresville, NC typically ranges from $8,000 to $20,000+ in 2026, depending on the size of your home, the efficiency of the system, ductwork requirements, and installation complexity.
Want to know what a new AC may cost for your home? Use our HVAC Cost Calculator to get instant Air Conditioning replacement pricing in Mooresville, NC. Compare system options, estimated monthly payments, and personalized HVAC installation costs in minutes—before scheduling an in-home consultation.
Duct Cleaning & HVAC System Prices in Mooresville, NC
Get your free instant quote online in seconds!
HVAC Replacement & Installation in Mooresville, NC
Looking for a New Air Conditioning System? Our licensed HVAC installers in Mooresville, NC are certified experts in energy-efficient heating & cooling systems that can lower your energy bills by up to 30%. We’ll walk you through the latest AC options and help you choose the right system for improved comfort, quieter operation, and cleaner indoor air. Call or book online today for a free, no-obligation consultation and quote!
AC Repair in Mooresville, NC
Need AC repair in Mooresville, NC? GSM Services provides fast, reliable AC repair for all makes and models. Our licensed HVAC technicians deliver expert service, honest pricing, and quality repairs you can trust. Plus, we waive the service call fee with repairs! Schedule online now for fast AC repair or service!
HVAC Repair & Service for All System Types
- Central HVAC Systems
- Heat Pumps
- Air Conditioners
- Furnaces
- Ductless Mini Splits
- Packaged HVAC Units
Warning Signs Your HVAC System Needs Repair
- AC Blowing Warm Air
- AC Freezing Up or Ice On AC Unit
- Furnace Not Heating
- System Not Turning On
- Weak Airflow From Vents
- Loud & Unusual Noises
- Frequent Cycling On And Off
- Hot/Cold Rooms
- Musty Smells or Odors
- Excess Humidity Indoors
- High Electric Bills
Heating & Cooling Services We Offer:
Crawl Space, Attic, Insulation, Generators & Other Services We Offer:
Duct Cleaning in Mooresville, NC
Our duct cleaning services thoroughly clean your entire duct system—not just the air vents—to ensure optimal air quality and system efficiency. We start with a full inspection, checking for tears, leaks, or any issues that could affect performance. Our comprehensive cleaning service includes a special disinfectant spray treatment to leave your ducts fresh and sanitized. Get a free, instant online quote in seconds and breathe cleaner air with our professional duct cleaning services!
Top Insulation Company in Mooresville, NC
GSM Services is your trusted local insulation company in Mooresville, NC. We install attic, wall, crawlspace, floor, garage, and whole-home insulation to improve comfort, indoor air quality, and energy efficiency. Our insulation experts help homeowners lower energy bills, reduce hot and cold spots, and enjoy a more comfortable home year-round. Schedule your free insulation inspection today and receive a custom, no-obligation quote.
Serving the following Mooresville, NC zip codes
28115, 28117, 28115, 28117
Photo Galleries From Mooresville
Encapsulated crawl space with a dehumidifier
Work Requests From Mooresville, NC
- Project Location: Mooresville, NC
Duct cleaning - Project Location: Mooresville, NC
Just moved into new house to us. Want PM on AC and Heat pump. Need tutorial on filters etc - Project Location: Mooresville, NC
Need to put moisture barrier under house - Project Location: Mooresville, NC
General condition of and potential improvements in the crawlspace and attic. Also front door seal. - Project Location: Mooresville, NC
We have a commercial building that we struggle to keep a constant temp in. We currently have 4 15 ton split systems, ran through a Jace controller. We have a large heat load and during the summer months we see a 6 to 7 deg temp swing in a 10 hour period. We are looking for options that would bring us down to a 2 deg swing in 24 hour period. - Project Location: Mooresville, NC
Upstairs Ac unit is not cooling Additional information: Date requested: 02/23/2018 - Project Location: Mooresville, NC
I'm the listing agent on this home, it's under contract and the home inspection showed high moisture levels in the crawl space. There is no standing water under the home and we are needing a quote for the encapsulation of the crawlspace. - Project Location: Mooresville, NC
We will be building a home in Mooresville within the next 2 years. We just bought property. We have been interested in the benefits of geothermal energy. I'm interested in estimated cost, etc. The best time for me to speak to someone is between 4-5pm Thank you. - Project Location: Mooresville, NC
Need to weather proof new home. Construction was completed this year but windows doors are not weather tight. I have many large windows and I suspect many of them need resealing. One leaks when it rains. Garage door is also not weather proof. I can see light rays when it's closed and insects have been finding their way in. Can also see small space at door corner when back door is completely shut. - Project Location: Mooresville, NC
I believe our attic is poorly insulated - to the point where our upstairs dedicated HVAC cannot keep it cool (the HVAC was recently serviced, and is in good working condition). We would like to get an evaluation and estimate. Thank you!! - Project Location: Mooresville, NC
My craw space is tore underneath. Could you please tell me how much will it cost to replace the whole thing? Is it free for them to come out here to do a estimate? Thank you - Project Location: Mooresville, NC
Looking at spray foam insulating 2-3 interior walls to reduce sound. Looking to get a ballpark figure of cost. Ty - Project Location: Mooresville, NC
We have some cold air coming in, seems, from bottom of walls? would like to stop this, is not noticeable except in the colder months - Project Location: Mooresville, NC
This home is new construction - we are under contract to purchase this home and wanted an estimate on crawl space sealing. It has engineered bamboo floors installed and they have started to "cup" on the first floor. The humidity seems to be high in the crawl space and could be attributing to the floor issues. There is a vapor barrier and crawl space vents with a wooden door to access the crawl space. The air handler down there seems to have an unusual amount of condensation for a crawl space unit. We have friend in Brevard, NC that own a business sealing crawl spaces and they highly recommend we get it looked at. Thank you - Brian - Project Location: Mooresville, NC
I have a two story home and for years the bedroom that leads to the attic is always very hot or very cold depending upon the time of year. I am looking to fix this and all the reading I have done suggests I need to upgrade the insulation in my attic. Because of this, I am looking to receive a quote to either upgrade or replace my attic insulation. - Project Location: Mooresville, NC
Need vapor barrier repaired and most likely new gravel plus some down spout run off carriers extended or redirected. - Project Location: Mooresville, NC
We are looking to install an LP generator to our home and would like someone to come out and evaluate what we would need and give a quote. Saturday would ve the best day for us. - Project Location: Mooresville, NC
Interested in additional attic insulation for top story of house. MBR, office, and guest room are all below the roof- and run hot in summer and cold in winter. Please call 704.931.1081 to discuss project and suggest solution. - Project Location: Mooresville, NC
We want someone to look at our system and see why the upstairs flow is not effective nor efficient. Uneven cooling. Our units are regularly cleaned and maintained. - Project Location: Mooresville, NC
Like to get quote for insulating an attic
Products & Services
HVAC Systems
- air conditioning company
- air conditioning systems
- HVAC Replacements
- central air conditioning
- ductless air conditioning
- gas furnace
- geothermal heating and cooling
- HVAC tune ups
- high-efficiency HVAC systems
- ductless heating systems
- HVAC companies
- furnace installation
- furnace repair
- AC installation
- AC repair
- heat pump installation
- heat pump repair
Crawl Space Repairs
- crawl space encapsulations
- crawl space vapor barrier
- crawl space cleanings
- dehumidifers
- crawl space inspections
Home Energy Audits
- energy efficiency audit
- air leakage testing
- blower door testing
- crawl space inspection
- attic inspection
- insulation inspection
Home Generators
- generator installation
- generator repair
- generator service
Home Insulation Services
- attic insulation
- insulation installation
- insulation inspections
- insulation removal
- insulation company
- blown in insulation
- cellulose insulation
- duct insulation
- green insulation
- insulation contractors
- pipe insulation
- reflective insulation
- rigid foam insulation
- roof insulation
- wall insulation
- window insulation
- Crawl Space Insulation
- radiant barrier insulation
Air Sealing
- sealing air leaks
- air duct leakage
- air duct sealing
- air leakage testing
- door air seal
- window air leakage
Air Duct Cleaning
- duct cleaning services
- duct disinfectant spray treatment
- air vent cleaning
Ductwork
- ductwork repair
- ductwork installation
- ductwork cost
- furnace ductwork
- HVAC ductwork
- duct cleaning
Dryer Vent Cleaning
- dryer vent cleaning services
- dryer vent replacement
Company Awards
2026 Best Heating & AC Company
GSM Services Named 2026 Best of Gaston Winner for Best Heating & Cooling Company.
2025 Best Heating & Cooling Company
GSM Voted 2025 Community Choice Award Winner.
2024 Community Choice Award Winner
Voted Best Local HVAC Company in 2024.
2023 Community Choice Award Winner
Voted Best Heating & AC Company & Best Home Service Provider in the county.
Best of Gaston 2022
GSM Services won Best Heating & Cooling Company and Top Place To Work in the County!
Best Contractor to Work For - ACHR News
Named Best Contractor to Work For by ACHR News, a leading national industry publication in 2021.
Top Place to Work in Charlotte
GSM was recognized as one of the Top Places to Work in 2019 by The Charlotte Observer.